FULLERTON – Police are collecting homemade flutes used at Rolling Hills Elementary School as part of an investigation that has affected several Southern California school districts.

The flutes are thought to have been distributed by a suspect who may have tainted them with body fluid.

“It is important to note that, at this point, there is no indication that these flutes are in fact tainted,” Sgt. Jon Radus said in a Wednesday, Oct. 4, statement.

“This is being done in an abundance of caution.”

Like other police agencies, Fullerton police are collecting the flutes for the United States Postal Inspection Service, which is handling the case.

Details about the investigation have been very limited.

But in Orange County several districts have said that the flutes were distributed as part of a program called Flutes Across the World. At least some of the flutes were then decorated by the children.

The program had partnered with school districts in Orange and Los Angeles counties as well as with the Philharmonic Society of Orange County.

Representatives of at least five school districts have said their students may have used contaminated flutes: Anaheim Elementary, Fullerton and Fountain Valley school districts, and Newport-Mesa and Capistrano unified school districts. Children who took a music class at Bowers Museum’s Kidseum in Santa Ana may have also used the flutes.